
I wouldn't say he's promiscuous. I see that word thrown around a lot on yaoi manga. His ex might have been trying to get back with him, and it's not like the uke is dating anyone at that moment otherwise. Either way, it's too early to say whether he is because we don't actually know if he's sleeping around.
My real issue with he scene is that it's so commonly used especially when the seme is straight as a "gay awakening" plot. And it'll just lead to having a jealous seme that honestly has no right to be jealous in the beginning anyway lol
Sorry this ended up being so long...

It seemed like the ex forced himself onto the uke to me though
My journey through this first chapter:
> Oh what a cute idea
> I like the blond guy, he has a cat
> I feeeeeel the dark haired child. Moss is cute af
> Awww he cooked for him
> Oh no. Oh no. Is this a damn "surprise he's gay" scene
> It is
>